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In: Chemistry

Differentiate between molar mass, equivalent mass, number of moles and number of equivalents with examples as...

Differentiate between molar mass, equivalent mass, number of moles and number of equivalents with examples as related to electrochemistry.

Solutions

Expert Solution

Equivalent mass   = molar mass/no of electrons

one faraday electricity passed through electrolyte to form equivalent mass of substance is deposite at electrodes

Cu^2+ + 2e^- --------------> Cu

               2F

       equivalent mass of Cu   = atomic mass of Cu/no of faraday

                                              = 63.5/2   = 31.75 g

no of moles   = mass of substance/gram molar mass

no of equivalents = gram molar mass/basicity of acid or acidity of base


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